--- _id: '641' abstract: - lang: eng text: 'We introduce two novel methods for learning parameters of graphical models for image labelling. The following two tasks underline both methods: (i) perturb model parameters based on given features and ground truth labelings, so as to exactly reproduce these labelings as optima of the local polytope relaxation of the labelling problem; (ii) train a predictor for the perturbed model parameters so that improved model parameters can be applied to the labelling of novel data. Our first method implements task (i) by inverse linear programming and task (ii) using a regressor e.g. a Gaussian process. Our second approach simultaneously solves tasks (i) and (ii) in a joint manner, while being restricted to linearly parameterised predictors. Experiments demonstrate the merits of both approaches.' alternative_title: - LNCS author: - first_name: Vera full_name: Trajkovska, Vera last_name: Trajkovska - first_name: Paul full_name: Swoboda, Paul id: 446560C6-F248-11E8-B48F-1D18A9856A87 last_name: Swoboda - first_name: Freddie full_name: Åström, Freddie last_name: Åström - first_name: Stefanie full_name: Petra, Stefanie last_name: Petra citation: ama: 'Trajkovska V, Swoboda P, Åström F, Petra S. Graphical model parameter learning by inverse linear programming. In: Lauze F, Dong Y, Bjorholm Dahl A, eds. Vol 10302. Springer; 2017:323-334. doi:10.1007/978-3-319-58771-4_26' apa: 'Trajkovska, V., Swoboda, P., Åström, F., & Petra, S. (2017). Graphical model parameter learning by inverse linear programming. In F. Lauze, Y. Dong, & A. Bjorholm Dahl (Eds.) (Vol. 10302, pp. 323–334). Presented at the SSVM: Scale Space and Variational Methods in Computer Vision, Kolding, Denmark: Springer. https://doi.org/10.1007/978-3-319-58771-4_26' chicago: Trajkovska, Vera, Paul Swoboda, Freddie Åström, and Stefanie Petra. “Graphical Model Parameter Learning by Inverse Linear Programming.” edited by François Lauze, Yiqiu Dong, and Anders Bjorholm Dahl, 10302:323–34. Springer, 2017. https://doi.org/10.1007/978-3-319-58771-4_26. ieee: 'V. Trajkovska, P. Swoboda, F. Åström, and S. Petra, “Graphical model parameter learning by inverse linear programming,” presented at the SSVM: Scale Space and Variational Methods in Computer Vision, Kolding, Denmark, 2017, vol. 10302, pp. 323–334.' ista: 'Trajkovska V, Swoboda P, Åström F, Petra S. 2017. Graphical model parameter learning by inverse linear programming. SSVM: Scale Space and Variational Methods in Computer Vision, LNCS, vol. 10302, 323–334.' mla: Trajkovska, Vera, et al. Graphical Model Parameter Learning by Inverse Linear Programming. Edited by François Lauze et al., vol. 10302, Springer, 2017, pp. 323–34, doi:10.1007/978-3-319-58771-4_26. short: V. Trajkovska, P. Swoboda, F. Åström, S. Petra, in:, F. Lauze, Y. Dong, A. Bjorholm Dahl (Eds.), Springer, 2017, pp. 323–334. conference: end_date: 2017-06-08 location: Kolding, Denmark name: 'SSVM: Scale Space and Variational Methods in Computer Vision' start_date: 2017-06-04 date_created: 2018-12-11T11:47:39Z date_published: 2017-01-01T00:00:00Z date_updated: 2021-01-12T08:07:23Z day: '01' department: - _id: VlKo doi: 10.1007/978-3-319-58771-4_26 editor: - first_name: François full_name: Lauze, François last_name: Lauze - first_name: Yiqiu full_name: Dong, Yiqiu last_name: Dong - first_name: Anders full_name: Bjorholm Dahl, Anders last_name: Bjorholm Dahl intvolume: ' 10302' language: - iso: eng month: '01' oa_version: None page: 323 - 334 publication_identifier: isbn: - 978-331958770-7 publication_status: published publisher: Springer publist_id: '7147' quality_controlled: '1' scopus_import: 1 status: public title: Graphical model parameter learning by inverse linear programming type: conference user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 10302 year: '2017' ... --- _id: '6426' abstract: - lang: eng text: Synchronous programs are easy to specify because the side effects of an operation are finished by the time the invocation of the operation returns to the caller. Asynchronous programs, on the other hand, are difficult to specify because there are side effects due to pending computation scheduled as a result of the invocation of an operation. They are also difficult to verify because of the large number of possible interleavings of concurrent asynchronous computation threads. We show that specifications and correctness proofs for asynchronous programs can be structured by introducing the fiction, for proof purposes, that intermediate, non-quiescent states of asynchronous operations can be ignored. Then, the task of specification becomes relatively simple and the task of verification can be naturally decomposed into smaller sub-tasks. The sub-tasks iteratively summarize, guided by the structure of an asynchronous program, the atomic effect of non-atomic operations and the synchronous effect of asynchronous operations. This structuring of specifications and proofs corresponds to the introduction of multiple layers of stepwise refinement for asynchronous programs. We present the first proof rule, called synchronization, to reduce asynchronous invocations on a lower layer to synchronous invocations on a higher layer. We implemented our proof method in CIVL and evaluated it on a collection of benchmark programs. alternative_title: - IST Austria Technical Report author: - first_name: Thomas A full_name: Henzinger, Thomas A id: 40876CD8-F248-11E8-B48F-1D18A9856A87 last_name: Henzinger orcid: 0000−0002−2985−7724 - first_name: Bernhard full_name: Kragl, Bernhard id: 320FC952-F248-11E8-B48F-1D18A9856A87 last_name: Kragl orcid: 0000-0001-7745-9117 - first_name: Shaz full_name: Qadeer, Shaz last_name: Qadeer citation: ama: Henzinger TA, Kragl B, Qadeer S. Synchronizing the Asynchronous. IST Austria; 2017. doi:10.15479/AT:IST-2018-853-v2-2 apa: Henzinger, T. A., Kragl, B., & Qadeer, S. (2017). Synchronizing the asynchronous. IST Austria. https://doi.org/10.15479/AT:IST-2018-853-v2-2 chicago: Henzinger, Thomas A, Bernhard Kragl, and Shaz Qadeer. Synchronizing the Asynchronous. IST Austria, 2017. https://doi.org/10.15479/AT:IST-2018-853-v2-2. ieee: T. A. Henzinger, B. Kragl, and S. Qadeer, Synchronizing the asynchronous. IST Austria, 2017. ista: Henzinger TA, Kragl B, Qadeer S. 2017. Synchronizing the asynchronous, IST Austria, 28p. mla: Henzinger, Thomas A., et al. Synchronizing the Asynchronous. IST Austria, 2017, doi:10.15479/AT:IST-2018-853-v2-2. short: T.A. Henzinger, B. Kragl, S. Qadeer, Synchronizing the Asynchronous, IST Austria, 2017. date_created: 2019-05-13T08:15:55Z date_published: 2017-08-04T00:00:00Z date_updated: 2023-02-21T16:59:21Z day: '04' ddc: - '000' department: - _id: ToHe doi: 10.15479/AT:IST-2018-853-v2-2 file: - access_level: open_access checksum: b48d42725182d7ca10107a118815f4cf content_type: application/pdf creator: dernst date_created: 2019-05-13T08:14:44Z date_updated: 2020-07-14T12:47:30Z file_id: '6431' file_name: main(1).pdf file_size: 971347 relation: main_file file_date_updated: 2020-07-14T12:47:30Z has_accepted_license: '1' language: - iso: eng month: '08' oa: 1 oa_version: Published Version page: '28' publication_identifier: issn: - 2664-1690 publication_status: published publisher: IST Austria related_material: record: - id: '133' relation: later_version status: public status: public title: Synchronizing the asynchronous type: technical_report user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2017' ... --- _id: '643' abstract: - lang: eng text: It has been reported that nicotinamide-overload induces oxidative stress associated with insulin resistance, the key feature of type 2 diabetes mellitus (T2DM). This study aimed to investigate the effects of B vitamins in T2DM. Glucose tolerance tests (GTT) were carried out in adult Sprague-Dawley rats treated with or without cumulative doses of B vitamins. More specifically, insulin tolerance tests (ITT) were also carried out in adult Sprague-Dawley rats treated with or without cumulative doses of Vitamin B3. We found that cumulative Vitamin B1 and Vitamin B3 administration significantly increased the plasma H2O2 levels associated with high insulin levels. Only Vitamin B3 reduced muscular and hepatic glycogen contents. Cumulative administration of nicotinic acid, another form of Vitamin B3, also significantly increased plasma insulin level and H2O2 generation. Moreover, cumulative administration of nicotinic acid or nicotinamide impaired glucose metabolism. This study suggested that excess Vitamin B1 and Vitamin B3 caused oxidative stress and insulin resistance. article_processing_charge: No article_type: original author: - first_name: Wuping full_name: Sun, Wuping last_name: Sun - first_name: Ming-Zhu full_name: Zhai, Ming-Zhu id: 34009CFA-F248-11E8-B48F-1D18A9856A87 last_name: Zhai - first_name: Qian full_name: Zhou, Qian last_name: Zhou - first_name: Chengrui full_name: Qian, Chengrui last_name: Qian - first_name: Changyu full_name: Jiang, Changyu last_name: Jiang citation: ama: Sun W, Zhai M-Z, Zhou Q, Qian C, Jiang C. Effects of B vitamins overload on plasma insulin level and hydrogen peroxide generation in rats. Chinese Journal of Physiology. 2017;60(4):207-214. doi:10.4077/CJP.2017.BAF469 apa: Sun, W., Zhai, M.-Z., Zhou, Q., Qian, C., & Jiang, C. (2017). Effects of B vitamins overload on plasma insulin level and hydrogen peroxide generation in rats. Chinese Journal of Physiology. Chinese Physiological Society. https://doi.org/10.4077/CJP.2017.BAF469 chicago: Sun, Wuping, Ming-Zhu Zhai, Qian Zhou, Chengrui Qian, and Changyu Jiang. “Effects of B Vitamins Overload on Plasma Insulin Level and Hydrogen Peroxide Generation in Rats.” Chinese Journal of Physiology. Chinese Physiological Society, 2017. https://doi.org/10.4077/CJP.2017.BAF469. ieee: W. Sun, M.-Z. Zhai, Q. Zhou, C. Qian, and C. Jiang, “Effects of B vitamins overload on plasma insulin level and hydrogen peroxide generation in rats,” Chinese Journal of Physiology, vol. 60, no. 4. Chinese Physiological Society, pp. 207–214, 2017. ista: Sun W, Zhai M-Z, Zhou Q, Qian C, Jiang C. 2017. Effects of B vitamins overload on plasma insulin level and hydrogen peroxide generation in rats. Chinese Journal of Physiology. 60(4), 207–214. mla: Sun, Wuping, et al. “Effects of B Vitamins Overload on Plasma Insulin Level and Hydrogen Peroxide Generation in Rats.” Chinese Journal of Physiology, vol. 60, no. 4, Chinese Physiological Society, 2017, pp. 207–14, doi:10.4077/CJP.2017.BAF469. short: W. Sun, M.-Z. Zhai, Q. Zhou, C. Qian, C. Jiang, Chinese Journal of Physiology 60 (2017) 207–214. date_created: 2018-12-11T11:47:40Z date_published: 2017-08-31T00:00:00Z date_updated: 2021-01-12T08:07:28Z day: '31' ddc: - '570' department: - _id: RySh doi: 10.4077/CJP.2017.BAF469 external_id: pmid: - '28847140' intvolume: ' 60' issue: '4' language: - iso: eng month: '08' oa_version: Published Version page: 207 - 214 pmid: 1 publication: Chinese Journal of Physiology publication_identifier: issn: - '03044920' publication_status: published publisher: Chinese Physiological Society publist_id: '7142' quality_controlled: '1' scopus_import: 1 status: public title: Effects of B vitamins overload on plasma insulin level and hydrogen peroxide generation in rats type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 60 year: '2017' ... --- _id: '642' abstract: - lang: eng text: Cauchy problems with SPDEs on the whole space are localized to Cauchy problems on a ball of radius R. This localization reduces various kinds of spatial approximation schemes to finite dimensional problems. The error is shown to be exponentially small. As an application, a numerical scheme is presented which combines the localization and the space and time discretization, and thus is fully implementable. author: - first_name: Mate full_name: Gerencser, Mate id: 44ECEDF2-F248-11E8-B48F-1D18A9856A87 last_name: Gerencser - first_name: István full_name: Gyöngy, István last_name: Gyöngy citation: ama: Gerencser M, Gyöngy I. Localization errors in solving stochastic partial differential equations in the whole space. Mathematics of Computation. 2017;86(307):2373-2397. doi:10.1090/mcom/3201 apa: Gerencser, M., & Gyöngy, I. (2017). Localization errors in solving stochastic partial differential equations in the whole space. Mathematics of Computation. American Mathematical Society. https://doi.org/10.1090/mcom/3201 chicago: Gerencser, Mate, and István Gyöngy. “Localization Errors in Solving Stochastic Partial Differential Equations in the Whole Space.” Mathematics of Computation. American Mathematical Society, 2017. https://doi.org/10.1090/mcom/3201. ieee: M. Gerencser and I. Gyöngy, “Localization errors in solving stochastic partial differential equations in the whole space,” Mathematics of Computation, vol. 86, no. 307. American Mathematical Society, pp. 2373–2397, 2017. ista: Gerencser M, Gyöngy I. 2017. Localization errors in solving stochastic partial differential equations in the whole space. Mathematics of Computation. 86(307), 2373–2397. mla: Gerencser, Mate, and István Gyöngy. “Localization Errors in Solving Stochastic Partial Differential Equations in the Whole Space.” Mathematics of Computation, vol. 86, no. 307, American Mathematical Society, 2017, pp. 2373–97, doi:10.1090/mcom/3201. short: M. Gerencser, I. Gyöngy, Mathematics of Computation 86 (2017) 2373–2397. date_created: 2018-12-11T11:47:40Z date_published: 2017-01-01T00:00:00Z date_updated: 2021-01-12T08:07:26Z day: '01' department: - _id: JaMa doi: 10.1090/mcom/3201 intvolume: ' 86' issue: '307' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1508.05535 month: '01' oa: 1 oa_version: Submitted Version page: 2373 - 2397 publication: Mathematics of Computation publication_identifier: issn: - '00255718' publication_status: published publisher: American Mathematical Society publist_id: '7144' quality_controlled: '1' scopus_import: 1 status: public title: Localization errors in solving stochastic partial differential equations in the whole space type: journal_article user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87 volume: 86 year: '2017' ... --- _id: '645' abstract: - lang: eng text: Markov decision processes (MDPs) are standard models for probabilistic systems with non-deterministic behaviours. Long-run average rewards provide a mathematically elegant formalism for expressing long term performance. Value iteration (VI) is one of the simplest and most efficient algorithmic approaches to MDPs with other properties, such as reachability objectives. Unfortunately, a naive extension of VI does not work for MDPs with long-run average rewards, as there is no known stopping criterion. In this work our contributions are threefold. (1) We refute a conjecture related to stopping criteria for MDPs with long-run average rewards. (2) We present two practical algorithms for MDPs with long-run average rewards based on VI. First, we show that a combination of applying VI locally for each maximal end-component (MEC) and VI for reachability objectives can provide approximation guarantees. Second, extending the above approach with a simulation-guided on-demand variant of VI, we present an anytime algorithm that is able to deal with very large models. (3) Finally, we present experimental results showing that our methods significantly outperform the standard approaches on several benchmarks. alternative_title: - LNCS author: - first_name: Pranav full_name: Ashok, Pranav last_name: Ashok - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Przemyslaw full_name: Daca, Przemyslaw id: 49351290-F248-11E8-B48F-1D18A9856A87 last_name: Daca - first_name: Jan full_name: Kretinsky, Jan id: 44CEF464-F248-11E8-B48F-1D18A9856A87 last_name: Kretinsky orcid: 0000-0002-8122-2881 - first_name: Tobias full_name: Meggendorfer, Tobias last_name: Meggendorfer citation: ama: 'Ashok P, Chatterjee K, Daca P, Kretinsky J, Meggendorfer T. Value iteration for long run average reward in markov decision processes. In: Majumdar R, Kunčak V, eds. Vol 10426. Springer; 2017:201-221. doi:10.1007/978-3-319-63387-9_10' apa: 'Ashok, P., Chatterjee, K., Daca, P., Kretinsky, J., & Meggendorfer, T. (2017). Value iteration for long run average reward in markov decision processes. In R. Majumdar & V. Kunčak (Eds.) (Vol. 10426, pp. 201–221). Presented at the CAV: Computer Aided Verification, Heidelberg, Germany: Springer. https://doi.org/10.1007/978-3-319-63387-9_10' chicago: Ashok, Pranav, Krishnendu Chatterjee, Przemyslaw Daca, Jan Kretinsky, and Tobias Meggendorfer. “Value Iteration for Long Run Average Reward in Markov Decision Processes.” edited by Rupak Majumdar and Viktor Kunčak, 10426:201–21. Springer, 2017. https://doi.org/10.1007/978-3-319-63387-9_10. ieee: 'P. Ashok, K. Chatterjee, P. Daca, J. Kretinsky, and T. Meggendorfer, “Value iteration for long run average reward in markov decision processes,” presented at the CAV: Computer Aided Verification, Heidelberg, Germany, 2017, vol. 10426, pp. 201–221.' ista: 'Ashok P, Chatterjee K, Daca P, Kretinsky J, Meggendorfer T. 2017. Value iteration for long run average reward in markov decision processes. CAV: Computer Aided Verification, LNCS, vol. 10426, 201–221.' mla: Ashok, Pranav, et al. Value Iteration for Long Run Average Reward in Markov Decision Processes. Edited by Rupak Majumdar and Viktor Kunčak, vol. 10426, Springer, 2017, pp. 201–21, doi:10.1007/978-3-319-63387-9_10. short: P. Ashok, K. Chatterjee, P. Daca, J. Kretinsky, T. Meggendorfer, in:, R. Majumdar, V. Kunčak (Eds.), Springer, 2017, pp. 201–221. conference: end_date: 2017-07-28 location: Heidelberg, Germany name: 'CAV: Computer Aided Verification' start_date: 2017-07-24 date_created: 2018-12-11T11:47:41Z date_published: 2017-07-13T00:00:00Z date_updated: 2021-01-12T08:07:32Z day: '13' department: - _id: KrCh doi: 10.1007/978-3-319-63387-9_10 ec_funded: 1 editor: - first_name: Rupak full_name: Majumdar, Rupak last_name: Majumdar - first_name: Viktor full_name: Kunčak, Viktor last_name: Kunčak intvolume: ' 10426' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1705.02326 month: '07' oa: 1 oa_version: Submitted Version page: 201 - 221 project: - _id: 25892FC0-B435-11E9-9278-68D0E5697425 grant_number: ICT15-003 name: Efficient Algorithms for Computer Aided Verification - _id: 25863FF4-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11407 name: Game Theory - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' publication_identifier: isbn: - 978-331963386-2 publication_status: published publisher: Springer publist_id: '7135' quality_controlled: '1' scopus_import: 1 status: public title: Value iteration for long run average reward in markov decision processes type: conference user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 10426 year: '2017' ...